Question

I currently have a table with all the data, using this data i want to create another table which could be used for auditing purpose (similar layout like pivot table)

Example Below:

Raw Data

Name         Places Visited
----------------------------
Will         London

John         Toronto

Dave         New York

Will         London

What I want (similar to Pivot Table but I can use letters):

Name/Places Visted    London      Toronto      New York

Will                    Y           N             Y

John                    N           Y             N

Dave                    N           N             Y

Any help to produce this will be much appreciated!

I hope i’ve explained myself well but let me know if you would like to clarify anything.

Many Thanks!!

Answer 1

Solution for SQL Server 2005/2008:

DECLARE @Temp TABLE 
(
     Name NVARCHAR(100) NOT NULL
    ,Place NVARCHAR(100) NOT NULL
);

INSERT  @Temp 
SELECT 'Will','London'
UNION ALL
SELECT 'John','Toronto'
UNION ALL
SELECT 'Dave','New York'
UNION ALL
SELECT 'Will','London';

SELECT  
    pvt.Name [Name/Places Visted]
    ,CASE WHEN [London] IS NOT NULL THEN 'Y' ELSE 'N' END [London]
    ,CASE WHEN [Toronto] IS NOT NULL THEN 'Y' ELSE 'N' END [Toronto]
    ,CASE WHEN [New York] IS NOT NULL THEN 'Y' ELSE 'N' END [New York]
FROM    @Temp src
PIVOT( MAX(src.Place) FOR src.Place IN([London], [Toronto], [New York]) ) pvt
ORDER BY pvt.Name DESC;

Results:

Name/Places Visted  London Toronto New York
------------------- ------ ------- --------
Will                Y      N       N
John                N      Y       N
Dave                N      N       Y

Note: Columns resulting from PIVOT operation are static. This means that if you add records with Place='PARIS' you should modify the query like this: PIVOT( MAX(src.Place) FOR src.Place IN([London], [Toronto], [New York], [Paris]). So, you could use PIVOT operator if you have a limited number of cities.